Here's a quick run down on how to these cartridges work and how how to fill them. I've also got some early notes on what it's like to run oils in them.
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I think this shows best how the cartridge works. The empty vial on top has been used, the plunger fully depressed, and will now be disposed of. The unused vial below is ready to be filled.
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From top to bottom you see: 29g 1/2" needle, empty new cartridge, 3ml syringe containing 30 IU of generic GH and fitted with another 29g needle.
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Filling is straight forward, but since the rubber stopper has such a small area I like to use small needles to fill them. You can see that I'm using the needle on its own to allow the vial to breathe.
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Filled vial, ready to load and purge of air.
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From here on the steps are no different to insulin use. These steps can all be found on youtube. I would advise waiting for any frothy bubbles to expire before purging the cartridge of air.
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Assembled, 31g 8mm needle fitted and pen is set to administer 0.2ml.
Questions?
Notes:
I've been running my cycle through another pen to mixed results. I'm administering .35ml daily and attempting shallow IM with 29g 1/2" tips and it's going ok.
The main point I'd make is that I can't administer my preferred sites. Typically I rotate through delts and pecs but these sites are not suitable for oil injection via pen. This is because I can't get my hands in the correct orientation to generate enough force on the plunger. Ventro glutes IM and stomach subq are working well for now, quads are there for the taking but I've never pinned them before.
It's early days though and more experimentation is necessary. But at this stage I'm confident that this would be an excellent way to administer a cruise dose. Cycle dose I'm not sold on yet. I will absolutely be using these for Semaglutide/MT2 and any other peptide that I use regularly.
If you've read this far maybe you can tell me why I can't react to posts in the QSC thread? I can post there of course, and I could ask this there, but it's already full of off topic BS and I don't want to add to it.